But the speed of light is not a catch all limit to interstellar travel. Heck, we're only a couple centuries away from being able to build craft that can do significant percentages of c. Couple that with a race that has a naturally longer life and they could pretty easily start exploring the stars. I'm not saying they are anywhere near us, or interested in us if they do know we are here, but I don't think the speed of light is the ultimate "no" to expansion beyond a solar system.

__________________Baby, you and me were never meant to be, just maybe think of me once in a while...